earth science chapter 18 test - Chapters
This map shows the latest 24-hour mosaic of Earth from space in visible light, obtained by the VIIRS (Visible Infrared Imaging Radiometer Suite) instrument on board the NOAA-21 spacecraft. Science Book Class 9 16 Chapters 01 Matter in Our Surroundings 02 Is Matter Around Us Pure 03 Atoms and Molecules 04 Structure of the Atom 05 The Fundamental Unit of Life 06 Tissues 07 Diversity in Living Organisms 08 Motion 09 Force and Laws of Motion 10 Gravitation 11 Work and Energy 12 Sound 13 Why do We Fall Ill 14 Natural Resources 15 ... Chapter 06 of Science ncert book titled - Changes Around Us for class 6 Chapter 12 of Science ncert book titled - Electricity for class 10 Chapter 08 of Science ncert book titled - How do organisms reproduce?
Understanding the Context
for class 10 Earth is about eight light-minutes (1 AU) away from the Sun and orbits it, taking a year (about 365.25 days) to complete one revolution. Earth rotates around its own axis in slightly less than a day (in about 23 hours and 56 minutes). Earth, third planet from the Sun and the fifth largest planet in the solar system in terms of size and mass. Its single most outstanding feature is that its near-surface environments are the only places in the universe known to harbor life.
Image Gallery
Key Insights
Earth – our home planet – is the third planet from the Sun, and the fifth largest planet. It's the only place we know of inhabited by living things. While Earth is only the fifth largest planet in the solar system, it is the only planet in our solar system with liquid water on the surface.